Woven pile fabric



.= (Specimens.)

J. DOBSON.

WOVEN PILE FABRIC.

No. 373,553.. Patented Nov. 22, 1887.

Figl

WITNESSES: INVENTOR N, PETERS. Paolo-Lithograph, Wnhinghm u. C.

UNITED STATES PATENT rFIci-r.

JAMES DOBSON, OF PHILADELPHIA, PENNSYLVANIA.

WOVEN PILE. FABRIC.

SPECIFICATION forming part of Letters Patent No. 373,553, dated November 22, 1887.

Application filed April 9, 1885.

To all whom, it may concern:

Be it known that I, Janus DOBSON, a citizen of the United States, residing in the city of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in \Voven Pile Fabrics, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming apart of this specification.

My invention relates to woven pile fabrics; audit consists of a fabric composed of aground or body and a pile surface, the ground fabric being constructed of aseries of two contiguous bottom surface wefts woven in pairs and a single top weft lying above and in a line with each pair of bottom wefts, an intermediate stuffing-warp lying between the top and bottom wefts, and a series of pairs of tying-in threads passing from top to bottom alternately in opposite directions to each other between each two stuffing-threads and over and under each alternate top and bottom weft, the pilethreads being retained or secured entirely above the filling-threads by the top weft only, and these in turn by the tying or binding threads, so that the resultant fabric shall have the fullest possible length or height of pile above the filling threads upon which it rests.

In the accompanying drawings, Figure 1 is a view of the back or under surface of a cut pile carpet or other pile fabric woven according to my improvements. Fig. 2 is a view of the top surface of the fabric with some of the pile-threads pulled out to show a top view of the ground fabric. Fig. 3 is a vertical section of the fabric in a line with the double bottom Weft-threads and transversely to the stuffing and tying-in warp-threads, and Fig. 4 is a vertical cross-section in a line Willi the tying in warp-threads and transversely t0 the weft.

The object of my invention is, as above stated, to obtain in a woven pile fabric the greatest possiblelength ofpile abovethe ground or body of the material, and therefore, instead of weaving such body with a double upper weft and a single lower weft lying in a line intermediate the pairs of contiguous upper wefts, as it is usual to weave such fabrics, and whereby the pile warp is pulled down beneath the double upper weft, I reverse the position of the wefts and weave the fabric in such man ner that the pairs of weft-threads shall form the bottom instead of the top surface of the Serial No. 161,675. (Specimens) fabric, and that each single weft shall not only lie upon the top instead of the bottom surface, but shall be directly over each pair of bottom wefts, so that (the filling being between the two wefts and under the pile) it will be im possible to draw down the pile beneath the surface of the ground fabric, and the whole of it, except what is retained beneath the single top weft, will be exposed to View and to wear, and so that with a given length of pile warp the resultant fabric shows a height of pile surface half as much again, or nearly so, as when the pile fabric is woven in the usual manner, as descibcd.

The constriiction and mode of weaving my improved fabric will be readily understood by those skilled in the art by reference to the accompanying drawings, in connection with the foregoing description.

The two contiguous bottom wefts, woven in pairs and forming the backing or bottom snrface, are marked A A, the single top weftthreads are marked B B, the tyingin threads, passing from top to bottom of the fabric, are marked C, the pile warp is marked D, and E E represent theintermcdiate filling-threads lying transversely to and between the top and bottom wefts.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

\Vovcn pile fabric in which the ground fabric is composed of two contiguous bottom wefts woven in pairs, with a single top weft above and in a line with each pair of bottom wefts, an intermediate stuffing warp-thread, and a series of pairs of contiguous binding or tying-in threads, thethreads of each pairpassingalternatcly from top to bottom of the fab ric between the stutfing-threads and in opposite directions to each other, and having the pile retained or secured entirely above the stuffing-threads directly above each pair of bottom wefts, and by said top surface wefts only, substantially'as described.

In testimony whereof I have hereunto affixed my signature this 30th day of March, A. D. 1885.

JAMES DoBson.

Witnesses:

H. I. FEN'ION, FRANCIS S. BROWN. 

